If we're going to overwrite the timezone context, make sure everything
is cleaned up, including the signal handler. Otherwise, we may end up
running the signal handler without a context attached:
(gdb) bt
#0 network_timezone_state_changed (self=0x6aa1e8) at mm-iface-modem-time.c:266
#1 0x76a8d418 in g_closure_invoke (closure=0x6c9810, return_value=0x0, return_value@entry=0x1, n_param_values=2, param_values=0x7edb58c0, param_values@entry=0x6cdab8,
invocation_hint=invocation_hint@entry=0x7edb585c) at gclosure.c:804
#2 0x76a9e674 in signal_emit_unlocked_R (node=node@entry=0x6794d0, detail=0, detail@entry=391, instance=instance@entry=0x6aa1e8, emission_return=0x6794a8, emission_return@entry=0x0,
instance_and_params=instance_and_params@entry=0x7edb58c0) at gsignal.c:3629
#3 0x76aa31f4 in g_signal_emit_valist (instance=instance@entry=0x6aa1e8, signal_id=signal_id@entry=1, detail=detail@entry=6767564, var_args=..., var_args@entry=...) at gsignal.c:3385
#4 0x76aa34ec in g_signal_emit (instance=instance@entry=0x6aa1e8, signal_id=signal_id@entry=1, detail=391) at gsignal.c:3441
#5 0x76a91698 in g_object_dispatch_properties_changed (object=0x6aa1e8, n_pspecs=1, pspecs=<optimized out>) at gobject.c:1062
#6 0x76a90e7c in g_object_notify_queue_thaw (object=object@entry=0x6aa1e8, nqueue=nqueue@entry=0x75409418) at gobject.c:296
#7 0x76a9470c in g_object_set_valist (object=object@entry=0x6aa1e8, first_property_name=first_property_name@entry=0xad566 "iface-modem-state", var_args=..., var_args@entry=...) at gobject.c:2171
#8 0x76a94b18 in g_object_set (_object=_object@entry=0x6aa1e8, first_property_name=0xad566 "iface-modem-state") at gobject.c:2275
#9 0x0004b8a4 in __iface_modem_update_state_internal (self=0x6aa1e8, new_state=MM_MODEM_STATE_DISABLED, reason=MM_MODEM_STATE_CHANGE_REASON_USER_REQUESTED, failed_reason=MM_MODEM_STATE_FAILED_REASON_NONE)
at mm-iface-modem.c:1487
#10 0x0007047c in disabling_context_free (ctx=0x6ba850) at mm-broadband-modem.c:9053
#11 0x76b4e538 in g_task_finalize (object=0x682488) at gtask.c:636
#12 0x76a92800 in g_object_unref (_object=0x682488) at gobject.c:3183
#13 0x00072154 in iface_modem_disable_ready (self=0x6aa1e8, result=0x7011b0, task=0x682488) at mm-broadband-modem.c:9101
#14 0x76b4e6ec in g_task_return_now (task=0x7011b0) at gtask.c:1107
#15 0x76b4e720 in complete_in_idle_cb (task=0x7011b0) at gtask.c:1121
#16 0x7694d144 in g_main_dispatch (context=0x6765a8) at gmain.c:3154
#17 g_main_context_dispatch (context=context@entry=0x6765a8) at gmain.c:3769
#18 0x7694d40c in g_main_context_iterate (context=0x6765a8, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3840
#19 0x7694d838 in g_main_loop_run (loop=0x6750d0) at gmain.c:4034
#20 0x0002bec0 in main (argc=<optimized out>, argv=<optimized out>) at main.c:181
The problem of full vendor blacklist are hubs.
Because ATTRS{} matches all devices in the tree,
a modem connected to a OpenMoko hub will be blacklisted as well.
ModemManager[18223]: <debug> [1530023432.028473] Modem has 3GPP capabilities, enabling the Modem 3GPP interface...
Thread 1 "ModemManager" received signal SIGSEGV, Segmentation fault.
0x0000555555618baa in common_enable_disable_unsolicited_events_signal_strength (task=0x5555558e4440) at mm-broadband-modem-qmi.c:6545
6545 if (ctx->enable)
(gdb) bt
#0 0x0000555555618baa in common_enable_disable_unsolicited_events_signal_strength (task=0x5555558e4440) at mm-broadband-modem-qmi.c:6545
#1 0x0000555555618d70 in common_enable_disable_unsolicited_events (self=0x55555597a3f0, enable=1, callback=0x5555555c8c20 <enable_unsolicited_events_ready>, user_data=0x5555559779b0)
at mm-broadband-modem-qmi.c:6719
#2 0x0000555555618e5b in modem_3gpp_enable_unsolicited_events (self=0x55555597a3f0, callback=0x5555555c8c20 <enable_unsolicited_events_ready>, user_data=0x5555559779b0) at mm-broadband-modem-qmi.c:6749
#3 0x00005555555c9095 in interface_enabling_step (task=0x5555559779b0) at mm-iface-modem-3gpp.c:1907
#4 0x00005555555c8c0a in setup_unsolicited_events_ready (self=0x55555597a3f0, res=0x5555558efad0, task=0x5555559779b0) at mm-iface-modem-3gpp.c:1795
#5 0x00007ffff681e204 in () at /usr/lib/libgio-2.0.so.0
#6 0x00007ffff681e239 in () at /usr/lib/libgio-2.0.so.0
#7 0x00007ffff62731d6 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#8 0x00007ffff62735b1 in () at /usr/lib/libglib-2.0.so.0
#9 0x00007ffff62738e2 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#10 0x000055555559182c in main (argc=2, argv=0x7fffffffe4a8) at main.c:181
Fixes: baefe53ab9
After the tty is opened, the fd is passed off to a GIOChannel which
manages it. When the serial port is closed with _close_internal(),
g_io_channel_shutdown() is called which then calls g_io_unix_close() which
in turn close()s the fd.
_close_internal() performs a second explicit close() after the
g_io_channel_shutdown() which *in the best case scenario* will fail with
EBADF.
This is a race condition that can result in other file descriptors being
closed.
This change avoids double closing the serial port fd -- the shutdown() call
is removed in favour of the explicit close().
Commit 2a97e39cdd in libmim ("libmbim-glib: add additional cause codes
to MbimNwError") added additional cause codes to MbimNwError. This
patch maps some of those MbimNwError to MMMobileEquipmentError.
This patch requires libmbim >= 1.17.1
assure_qmi_client() was created to help migrating MMBroadbandModemQmi code
to use GTask. Now that all MMBroadbandModemQmi code has been migrated to
use GTask, this patch removes the old ensure_qmi_client() and rename
assure_qmi_client() as ensure_qmi_client().
Aleksander Morgado
Alexander Couzens
Brian, Sam
Baruch Siach
Ben Chan